Bug 12673: Followup - fix display in serials-edit

Bug 12673: Followup - fix display in serials-edit

This patch fix the display of items information
following changes on previous patch.

To test:
1. Go to serials
2. Add a subscription
3. Receive an issue
4. Change status to Arrived
Item information display correct labels,
but no pulldowns, that's the bug
5. Apply the patch
6. Reload page, change to Arrived again,
this time pulldowns must be right

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Works as expected.